CN215178566U - High-temperature superconducting magnetic levitation system permanent magnet track break-through performance testing device - Google Patents
High-temperature superconducting magnetic levitation system permanent magnet track break-through performance testing device Download PDFInfo
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- CN215178566U CN215178566U CN202121367225.2U CN202121367225U CN215178566U CN 215178566 U CN215178566 U CN 215178566U CN 202121367225 U CN202121367225 U CN 202121367225U CN 215178566 U CN215178566 U CN 215178566U
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Abstract
The utility model discloses a high-temperature superconducting maglev system permanent magnet track break-through performance testing device, which comprises a base, a rotary sliding table module and a vertical sliding table module, wherein the rotary sliding table module and the vertical sliding table module are arranged on the upper end surface of the base; the upper end face of the rotary sliding table module is fixed with a permanent magnet track which is of an open annular structure; the vertical sliding table module comprises a vertical support, a vertical moving beam and a beam driving mechanism, the vertical support is fixed on the upper end face of the base, the vertical moving beam is arranged on the vertical support in a sliding mode, the vertical moving beam is partially located above the permanent magnet track, the beam driving mechanism drives the vertical moving beam to move back and forth in the vertical direction, a low-temperature Dewar is arranged below the vertical moving beam, a high-temperature superconducting material is arranged at the bottom of the low-temperature Dewar, and the vertical moving beam is connected with the low-temperature Dewar through a triaxial force sensor. The utility model discloses effectively guaranteed the safety on measuring accuracy and the equipment.
Description
Technical Field
The utility model relates to a high temperature superconducting magnetism floats technical application field, especially relates to a high temperature superconducting magnetism floats permanent magnetism track of system and opens and break through capability test device.
Background
The high-temperature superconducting magnetic levitation system has self-stabilizing suspension and guiding capabilities, and has the advantages of simple structure, no need of electric power maintenance, energy conservation, environmental protection and the like. Has wide application prospect in the fields of ground ultra-high speed transportation, electromagnetic emission and the like.
Because the guidance performance of the high-temperature superconducting magnetic levitation system is limited, and the dynamic stability at a high speed is not verified by experiments, the high-temperature superconducting magnetic levitation system is generally applied to a low-speed starting stage or a launching stage in a high-speed carrying system or an electromagnetic launching system. However, in the switching and transmitting process of the high-temperature superconducting magnetic levitation system and other systems, the problem of the disconnection of the permanent magnet track exists, and when the low-temperature dewar passes through the system, the system is influenced by the sudden change of the magnetic flux to bring about larger running resistance, so that the reliability and stability of the switching and transmitting of the system are influenced.
Disclosure of Invention
The utility model provides a high temperature superconductive magnetic suspension system permanent magnetic track break-through performance testing device for researching the dynamic characteristic of low temperature Dewar passing through permanent magnetic track break-through, and exploring the stable configuration and method of system switch and launch,
the utility model adopts the technical proposal that:
a high-temperature superconducting magnetic levitation system permanent magnet track break-through performance testing device comprises a base, a rotary sliding table module and a vertical sliding table module, wherein the rotary sliding table module and the vertical sliding table module are arranged on the upper end surface of the base; the upper end face of the rotary sliding table module is fixed with a permanent magnet track which is of an open annular structure; the vertical sliding table module comprises a vertical support, a vertical moving beam and a beam driving mechanism, the vertical support is fixed on the upper end face of the base and is positioned on one side of the rotary sliding table module, the vertical moving beam is arranged on the vertical support in a sliding mode, part of the vertical moving beam is positioned above the permanent magnet track, the beam driving mechanism is arranged on the vertical support and drives the vertical moving beam to reciprocate in the vertical direction, a low-temperature Dewar is arranged below the vertical moving beam corresponding to the permanent magnet track, a high-temperature superconducting material is arranged at the bottom of the low-temperature Dewar, the triaxial force sensor is fixed on the lower surface of the vertical moving beam, and the low-temperature Dewar is connected with the triaxial force sensor; the rotating sliding table module drives the permanent magnet track to do high-speed rotating motion so as to indirectly simulate the dynamic characteristics of the low-temperature Dewar at the high-speed passing through the permanent magnet track break, and the dynamic characteristics of the suspension force, the guiding force and the magnetic resistance force of the low-temperature Dewar at the permanent magnet track break are measured through the triaxial force sensor.
Further, rotatory slip table module include rotating electrical machines, frame and connecting axle, the rotating electrical machines is connected with the connecting axle, on the frame was fixed in the base, the rotating electrical machines was established in the bottom of frame, the one end of connecting axle was connected to the output of rotating electrical machines, the other end of connecting axle in locate the permanent magnetism track basement of frame upper surface and connect, the upper surface at permanent magnetism track basement is fixed to the permanent magnetism track.
Further, the bottom of the triaxial force sensor is connected with the low-temperature Dewar through a connecting piece; the connecting piece is a II-shaped connecting piece, the upper end of the II-shaped connecting piece is connected with the lower end of the triaxial sensor, and the lower end of the II-shaped connecting piece is connected with the upper end of the low-temperature Dewar.
Furthermore, the connecting rod is formed by adopting a low-temperature-resistant heat-insulating material, so that the influence of low temperature on the triaxial force sensor caused by long-time test is avoided, and the test precision is effectively guaranteed.
Furthermore, two stressed side walls of the low-temperature Dewar at the position where the low-temperature Dewar is cut along the permanent magnet track are respectively reinforced by epoxy resin, so that the low-temperature Dewar is prevented from being damaged by overlarge stress.
Furthermore, the beam driving mechanism comprises a vertical driving motor, a vertical screw rod, a secondary commutator, a transverse screw rod and a primary steering gear; the vertical moving beam is sleeved on the vertical screw rod and is driven by the vertical screw rod to vertically reciprocate, and at least one vertical screw rod is respectively arranged on two opposite sides of the vertical moving beam; the output end of the vertical driving motor is connected with a primary steering gear, and the primary steering gear is arranged at the middle section of the transverse screw rod and drives the transverse screw rod to act; two ends of the transverse screw rod are respectively connected with a secondary commutator; the second-stage commutator is connected with one end of the vertical screw rod on the corresponding side, and the other end of the vertical screw rod is rotatably connected with the vertical bracket; the vertical driving motor controls the vertical movement of the vertical moving beam through the primary steering gear, the transverse screw rod, the secondary steering gear and the vertical screw rod in sequence, so that the suspension gap control between the low-temperature Dewar and the permanent magnet track is realized.
Furthermore, the low-temperature Dewar adopts one method or the combination of more than two methods of injecting liquid nitrogen, low-pressure treatment and refrigerating by a refrigerator to refrigerate the high-temperature superconducting material.
Furthermore, the high-temperature superconducting material is a single combined structure or a combined structure of any two or more of a block material, a strip stack and a coil of ReBaCuO (Re is a rare earth element) or other superconducting materials.
Furthermore, the permanent magnet tracks are formed by permanent magnets and are arranged in a Halbach array structure along the transverse direction, and the permanent magnet tracks surround an open circular ring shape, so that a structure that the permanent magnet tracks are disconnected is formed.
Further, the method for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic suspension system comprises the following steps of:
s1: arranging high-temperature superconducting materials at the bottom of the low-temperature Dewar according to preset arrangement, locking the high-temperature superconducting materials through a pressing plate, and controlling a rotary sliding table module to enable a permanent magnet track to be opposite to the low-temperature Dewar;
s2: adjusting the height of the vertical moving beam through a vertical shaft driving motor, and fixing the vertical height of the low-temperature Dewar according to the preset field cooling height;
s3: injecting liquid nitrogen into the low-temperature Dewar to ensure that the high-temperature superconducting material is completely soaked in the liquid nitrogen, and performing field cooling on the high-temperature superconducting material;
s4: when the high-temperature superconducting material completely enters a superconducting state, starting a rotating motor to enable the permanent magnet track and the turntable to rotate together at a high speed;
s5: when the annular permanent magnet track reaches a preset running speed, the vertical sliding table module drives the low-temperature Dewar to be close to the permanent magnet track, and a triaxial force sensor is adopted to measure the suspension force, the guide force and the magnetic resistance force of the low-temperature Dewar at the position of the permanent magnet track through disconnection;
s6: and after the experiment is finished, storing and processing the acquired data.
The utility model adopts the technical scheme, make annular permanent magnetism track opening, constitute permanent magnetism track structure of breaking, when the carousel rotated at a high speed, can indirectly simulate low temperature dewar and pass through permanent magnetism track department of breaking at a high speed, measure the dynamic characteristic that low temperature dewar passes through permanent magnetism track department of breaking through triaxial force transducer; two side walls of the low-temperature Dewar along the opening direction of the track are reinforced, so that the safety in the measuring process is improved; the II-shaped connecting piece adopts a low-temperature-resistant heat-insulating material, so that the influence of the triaxial force sensor on low temperature in the test process can be avoided, and the test precision and reliability are effectively guaranteed.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;
FIG. 1 is a transverse view of a measuring device of the present invention;
FIG. 2 is a front view of the measuring device of the present invention;
FIG. 3 is a top view of an open ring-shaped permanent magnet track and a low temperature Dewar;
FIG. 4a is a schematic diagram of a first stage of the rotary operation of the split ring permanent magnet orbit;
FIG. 4b is a schematic diagram of a second stage of the rotary operation of the split ring permanent magnet orbit;
FIG. 4c is a schematic view of a third stage of the rotary operation of the split ring permanent magnet orbit;
FIG. 5 is a three-dimensional view of a side-hung open-ended annular permanent magnet track and a low temperature Dewar.
Names of reference numbers in the drawings: 1-rotating sliding table module, 101-permanent magnet track, 102-permanent magnet track substrate, 103-connecting shaft, 104-frame, 105-rotating motor, 2-vertical sliding table module, 201-vertical support, 202-vertical moving beam, 203-three-axis sensor, 204- 'II' -shaped connecting piece, 205-low-temperature Dewar, 206-high-temperature superconducting material, 207-vertical screw rod, 208-secondary steering gear, 209-transverse screw rod, 210-primary steering gear, 211-vertical driving motor, 212-epoxy resin reinforcing plate, 3-base, Gap-suspension Gap, CH-initial cooling height and WH-working height.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
As shown in one of fig. 1 to 5, the utility model discloses a high temperature superconducting magnetic levitation system permanent magnet track break-through performance testing device, which comprises a base, a rotary slipway module and a vertical slipway module, wherein the rotary slipway module and the vertical slipway module are arranged on the upper end surface of the base; the upper end face of the rotary sliding table module is fixed with a permanent magnet track which is of an open annular structure; the vertical sliding table module comprises a vertical support, a vertical moving beam and a beam driving mechanism, the vertical support is fixed on the upper end face of the base and is positioned on one side of the rotary sliding table module, the vertical moving beam is arranged on the vertical support in a sliding mode, part of the vertical moving beam is positioned above the permanent magnet track, the beam driving mechanism is arranged on the vertical support and drives the vertical moving beam to reciprocate in the vertical direction, a low-temperature Dewar is arranged below the vertical moving beam corresponding to the permanent magnet track, a high-temperature superconducting material is arranged at the bottom of the low-temperature Dewar, the triaxial force sensor is fixed on the lower surface of the vertical moving beam, and the low-temperature Dewar is connected with the triaxial force sensor; the rotating sliding table module drives the permanent magnet track to do high-speed rotating motion so as to indirectly simulate the dynamic characteristics of the low-temperature Dewar at the high-speed passing through the permanent magnet track break, and the dynamic characteristics of the suspension force, the guiding force and the magnetic resistance force of the low-temperature Dewar at the permanent magnet track break are measured through the triaxial force sensor.
As horizontal and forward view of measuring device shown in fig. 1 or fig. 2, overall structure is by perpendicular slip table mould 2, rotatory slip table module 1 and base 3 constitute, whole rotatory slip table module 1 is fixed on base 3, fixed permanent magnetism track basement 102 in rotatory slip table module 1 top, permanent magnetism track 101 is fixed on permanent magnetism track basement 102, place low temperature dewar 205 directly over permanent magnetism track 101 at certain clearance department, low temperature dewar 205 connects triaxial force transducer 203 through "II" type connecting piece 204, triaxial force transducer 203 is connected with perpendicular slip table module 2 through vertical beam 202, fix on base 3.
As shown in the top view of the open-loop permanent magnet track and the low-temperature dewar shown in fig. 3, the permanent magnet track 101 is in an open-loop structure, the permanent magnet track 101 is controlled to rotate at a high speed by the rotating sliding table module 2, the opening and closing of the low-temperature dewar 205 through the permanent magnet track 101 is indirectly simulated, and the dynamic characteristics of the suspension force, the guiding force and the magnetic resistance force of the low-temperature dewar 205 through the opening and closing of the permanent magnet track 101 are measured by the triaxial force sensor 203;
the rotary sliding table module 1 comprises a rotary motor 105, a frame 104, a connecting shaft 103, a permanent magnet track 101 and a permanent magnet track substrate 102, wherein the rotary motor 105 is connected with the connecting shaft 103, one end of the connecting shaft 103 is connected with a fixing device, the other end of the connecting shaft is connected with the rotary motor 105, the rotary motor is integrally fixed on the frame 104, and the frame 104 is fixed on the base 3;
the fixing device comprises a connecting shaft 103, a permanent magnet track substrate 102 and a permanent magnet track 101, wherein the connecting shaft 103 is fixed on a frame 104, one end of the permanent magnet track substrate 102 is fixed on the connecting shaft 103, the other end of the permanent magnet track substrate is fixed with the permanent magnet track 101, and the open circular ring-shaped permanent magnet track 101 also stably runs at a high speed along with the high-speed running of the connecting shaft;
the permanent magnet track 101 is in a structure that permanent magnets are transversely arranged according to a Halbach array structure to form an open circular ring shape, so that the permanent magnet track 101 is disconnected;
the vertical sliding table module 2 consists of a vertical bracket 201, a vertical moving beam 202, a vertical screw rod 207, a secondary commutator 208, a transverse screw rod 209, a primary steering gear 210 and a vertical driving motor 211; the low-temperature Dewar 205 is sequentially connected with a II-shaped connecting piece 204, a triaxial force sensor 203 and a vertical moving beam 202; the vertical driving motor 211 controls the vertical movement of the vertical moving beam 202 sequentially through the primary steering gear 210, the transverse screw rod 209, the secondary steering gear 208 and the vertical screw rod 207, and further controls the suspension Gap of the low-temperature dewar 205.
Two stressed side walls of the low-temperature Dewar 205 at the position where the rail is cut off are respectively reinforced by epoxy resin reinforcing plates 212, so that damage to the low-temperature Dewar 205 caused by overlarge stress is prevented.
The II-shaped connecting piece 204 is made of a low-temperature-resistant heat-insulating material, so that the influence of low temperature on the triaxial force sensor 203 caused by long-time test is avoided, and the test precision is effectively ensured;
referring to fig. 4a, 4b and 4c, the method for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system comprises the following steps:
s1: arranging high-temperature superconducting materials 206 at the bottom of the low-temperature Dewar 205 according to preset arrangement, locking the high-temperature superconducting materials through a pressing plate, and controlling the rotary sliding table module 1 to enable the permanent magnet track 101 to be opposite to the low-temperature Dewar 205;
s2: the height of the vertical moving beam 202 is adjusted through a vertical shaft driving motor 211, and the vertical height of the low-temperature Dewar 205 is fixed according to a preset field cooling height CH;
s3: injecting liquid nitrogen into the low-temperature Dewar 205 to ensure that the high-temperature superconducting material is completely soaked in the liquid nitrogen, and performing field cooling on the high-temperature superconducting material 206;
s4: when the high-temperature superconducting material 206 completely enters a superconducting state, the rotating motor 105 is started to enable the permanent magnet track 101 and the turntable to rotate at a high speed;
s5: when the annular permanent magnet track 101 reaches a preset running speed, the vertical sliding table module 2 drives the low-temperature Dewar 205 to be close to the permanent magnet track 101, and a triaxial force sensor 203 is adopted to measure the suspension force, the guiding force and the magnetic resistance force of the low-temperature Dewar 205 at the opening position of the permanent magnet track 101;
s6: and after the experiment is finished, storing and processing the acquired data.
As shown in fig. 5, the permanent magnet track 101 is fixed on the permanent magnet track substrate 102, a low-temperature dewar 205 is arranged at an initial cooling height CH right above the permanent magnet track 101 for field cooling, after the high-temperature superconducting material 206 is completely cooled, the low-temperature dewar 205 rotates at a high speed on the open circular ring-shaped permanent magnet track 101, and when the low-temperature dewar 205 passes through the open position of the open circular ring-shaped permanent magnet track 101, the triaxial force sensor 203 measures the suspension force, the guiding force and the magnetic resistance force of the low-temperature dewar 205 passing through the open position of the permanent magnet track 101.
It can be seen that, compared with the prior art, the beneficial effects of the utility model include: the permanent magnet track is surrounded into an open ring shape, so that a permanent magnet track breaking structure is formed, the dynamic characteristics of the low-temperature Dewar at the high-speed passing through the permanent magnet track breaking part can be indirectly simulated, the dynamic characteristics of the suspension force, the guide force and the magnetic resistance force of the low-temperature Dewar at the passing through the permanent magnet track breaking part are measured through the triaxial force sensor, the two stressed side walls of the low-temperature Dewar at the breaking part along the track are respectively reinforced by epoxy resin, the II-shaped connecting piece is made of a low-temperature-resistant heat-insulating material, the influence of low temperature on the triaxial force sensor due to long-time testing is avoided, and the testing precision and the safety of equipment are effectively guaranteed.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (8)
1. The utility model provides a high temperature superconductive maglev system permanent magnetism track opens and cuts off through capability test device which characterized in that: the sliding table comprises a base, and a rotary sliding table module and a vertical sliding table module which are arranged on the upper end surface of the base; the upper end face of the rotary sliding table module is fixed with a permanent magnet track which is of an open annular structure; the vertical sliding table module comprises a vertical support, a vertical moving beam and a beam driving mechanism, the vertical support is fixed on the upper end face of the base and is positioned on one side of the rotary sliding table module, the vertical moving beam is arranged on the vertical support in a sliding mode, part of the vertical moving beam is positioned above the permanent magnet track, the beam driving mechanism is arranged on the vertical support and drives the vertical moving beam to reciprocate in the vertical direction, a low-temperature Dewar is arranged below the vertical moving beam corresponding to the permanent magnet track, a high-temperature superconducting material is arranged at the bottom of the low-temperature Dewar, the triaxial force sensor is fixed on the lower surface of the vertical moving beam, and the low-temperature Dewar is connected with the triaxial force sensor; the rotating sliding table module drives the permanent magnet track to do high-speed rotating motion so as to indirectly simulate the dynamic characteristics of the low-temperature Dewar at the high-speed passing through the permanent magnet track break, and the dynamic characteristics of the suspension force, the guiding force and the magnetic resistance force of the low-temperature Dewar at the permanent magnet track break are measured through the triaxial force sensor.
2. The device for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system according to claim 1, is characterized in that: rotatory slip table module include rotating electrical machines, frame and connecting axle, rotating electrical machines is connected with the connecting axle, on the frame was fixed in the base, rotating electrical machines established in the bottom of frame, the one end of connecting axle is connected to rotating electrical machines's output, the other end of connecting axle with locate the permanent magnetism track basement of frame upper surface and be connected, the upper surface at permanent magnetism track basement is fixed to the permanent magnetism track.
3. The device for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system according to claim 1, is characterized in that: the bottom of the triaxial force sensor is connected with the low-temperature Dewar through a connecting piece; the connecting piece is a II-shaped connecting piece, the upper end of the II-shaped connecting piece is connected with the lower end of the triaxial sensor, and the lower end of the II-shaped connecting piece is connected with the upper end of the low-temperature Dewar.
4. The device for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system according to claim 3, wherein: the connecting rod adopts low temperature resistant heat-insulating material shaping to long-time test leads to the triaxial force sensor to receive microthermal influence, has effectively guaranteed the measuring accuracy.
5. The device for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system according to claim 1, is characterized in that: two stressed side walls of the low-temperature Dewar at the position where the low-temperature Dewar is cut off along the permanent magnet track are respectively reinforced by epoxy resin, so that the low-temperature Dewar is prevented from being damaged by overlarge stress.
6. The device for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system according to claim 1, is characterized in that: the beam driving mechanism comprises a vertical driving motor, a vertical screw rod, a secondary commutator, a transverse screw rod and a primary steering gear; the vertical moving beam is sleeved on the vertical screw rod and is driven by the vertical screw rod to vertically reciprocate, and at least one vertical screw rod is respectively arranged on two opposite sides of the vertical moving beam; the output end of the vertical driving motor is connected with a primary steering gear, and the primary steering gear is arranged at the middle section of the transverse screw rod and drives the transverse screw rod to act; two ends of the transverse screw rod are respectively connected with a secondary commutator; the second-stage commutator is connected with one end of the vertical screw rod on the corresponding side, and the other end of the vertical screw rod is rotatably connected with the vertical bracket; the vertical driving motor controls the vertical movement of the vertical moving beam through the primary steering gear, the transverse screw rod, the secondary steering gear and the vertical screw rod in sequence, so that the suspension gap control between the low-temperature Dewar and the permanent magnet track is realized.
7. The device for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system according to claim 1, is characterized in that: the low-temperature Dewar adopts one method or the combination of more than two methods of injecting liquid nitrogen, low-pressure nitrogen fixation treatment and refrigerating by a refrigerator to refrigerate the high-temperature superconducting material.
8. The device for testing the breaking passing performance of the permanent magnet track of the high-temperature superconducting magnetic levitation system according to claim 1, is characterized in that: the permanent magnet tracks are formed by permanent magnets and are arranged in a Halbach array structure along the transverse direction, and the permanent magnet tracks surround an open circular ring shape, so that a structure that the permanent magnet tracks are disconnected is formed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121367225.2U CN215178566U (en) | 2021-06-18 | 2021-06-18 | High-temperature superconducting magnetic levitation system permanent magnet track break-through performance testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121367225.2U CN215178566U (en) | 2021-06-18 | 2021-06-18 | High-temperature superconducting magnetic levitation system permanent magnet track break-through performance testing device |
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